Water vapor permeability tester C301H

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The C301H is a laboratory instrument for measuring water vapor transmission rate (WVTR) using an infrared moisture sensor, designed to meet ASTM F1249 and ISO 15106-2 for high-precision WVTR testing of films, containers and sheets. It provides dual-mode testing (film and container) in the same cabinet, automated test control, and optional data management and gas purification modules for specialized applications.

Product Characteristics

• Infrared Moisture Sensor: Labthink patented infrared moisture sensor achieving a lower test limit; designed to ASTM F1249; super-long service life and non-consumption type; equipped with over-limit alarm and automatic protection.
• Precise Data: 360° airflow circulation constant-temperature technology for improved temperature stability; automatic control of carrier gas flow and test temperature; constant-humidity generation principle referenced to NIST; imported high-precision temperature and humidity sensors with real-time monitoring; optional Labthink gas purification device to remove trace oxygen and provide anaerobic carrier gas; achieved test repeatability down to 0.005 g/(m2·day).
• Dual-Testing for Film & Container: Same cabinet supports separate film and container tests to ensure consistent environment; patented dual-function test cell for quick switching; widened operating spaces and automatic clamping for consistent sealing and safety.
• Smart Control: Color industrial touch screen with desktop OS; fully automatic testing and data saving; multiple sensors for intelligent reminders; built-in calendar, multi-language switch, multi-level authority management; optional needle micro printer output; embedded network port for external access, data transmission and remote upgrading.
• Multi-mainframe Connectable: Optional platform computer software (one computer can interconnect multiple mainframes) with centralized data management; software displays real-time WVTR, WVTR coefficient, temperature and humidity curves; professional test modes for research; optional GMP-compliant computer system and DataShield™ for centralized data traceability and management.
• Low-Carbon & Energy-Saving: Intelligent frequency-conversion control for low power consumption; can operate without a dedicated constant-temperature laboratory; selection of low-energy-consumption branded components.

Principle

• A sample is clamped between test chambers while nitrogen with stable relative humidity flows on the high-humidity side and dry nitrogen on the low-humidity side. Water vapor diffuses through the sample to the low-humidity side and is carried by dry nitrogen to the infrared moisture sensor; the sensor signal is analyzed to obtain WVTR.

Standards

• ASTM F1249, ISO 15106-2, GB/T 26253, GB/T 31355, JIS K7129, YBB00092003

Applications

• Basic Applications: Films — WVTR tests of plastic films, composite films, paper-plastic films, co-extrusion films, aluminum-plated and aluminum-composite films, glass-fiber aluminum-comp composite films, etc.
• Basic Applications: Containers — WVTR tests of pharmaceutical packaging, bottles, pouches, cans, cosmetics packaging, tubes, cups and other containers made of plastic, rubber, paper, composite, glass, metal, etc.
• Basic Applications: Sheets — WVTR tests of PP, PVC, PVDC, metal-foil, rubber and silicon sheets.
• Extended Applications: Container closures; LCD displays and related diaphragms; solar back panels; tubing (PPR and other pipes); pharmaceutical blister packaging; sterile protective films and medical plasters; battery covers & separators.

Caractéristiques / spécifications techniques

• Test Range: g/(m2·d) (standard area 50 cm2): 0.005–50; g/(pkg·day): 0.00002–0.25; MASK area (5 cm2) option: 0.2–500.
• Resolution: 0.0001 g/(m2·day).
• Repeatability: 0.005 g/(m2·day) or 2% (whichever is larger).
• Test Temperature: 15–50 °C; Temperature Fluctuation: ±0.2 °C.
• Test Humidity: 0%, 35–90% ±2% (standard); 100% optional.
• Additional / Optional Functions: GP-02 gas purification device (optional), DataShield™ (optional), GMP computer system for traceability (optional), CFR21 Part11 (optional).
• Test Chamber: 1 set for films + 1 set for containers.
• Film Size: 4.2” x 4.2” (10.6 cm × 10.6 cm); Film Thickness: ≤ 120 mil (3 mm).
• Container Size: ≤ Φ100 mm × 250 mm; bottle mouth Φ15 mm–Φ65 mm.
• Standard Test Area: 50 cm².
• Carrier Gas: 99.999% high-purity nitrogen (gas source provided by user); Carrier Gas Pressure: ≥ 40.6 PSI / 280 kPa; Port Size: 1/8 inch metal tubing (gas supply port Φ4 mm PU tubing, pressure 79.7 PSI / 550 kPa noted for gas supply).
• Dimensions: 26.7” H × 14.9” W × 22.8” D (68 × 38 × 58 cm).
• Power: 120 VAC ±10% 60 Hz or 220 VAC ±10% 50 Hz (alternative).
• Net Weight: 150 Lbs (68 kg).
• Standard Configuration: Mainframe, sampler, vacuum grease, Φ4 mm polyurethane tube.
• Optional Parts: Software, computer, GMP computer system requirements, CFR21 Part11, air compressor, GP-02, DataShield™.